An elevator maintenance safety device with multiple protections

Abstract

The utility model relates to the technical field of elevator maintenance and protection, and in particular to an elevator maintenance safety device with multiple protections, comprising an outer shell and a sleeve, wherein the inner surface of the outer shell is fixedly connected with the sleeve, a buffer device is arranged inside the outer shell, a locking device is arranged inside the outer shell, the inner surface of the sleeve is slidably engaged with the surfaces of two slide bars, one end of the slide bars on both sides penetrates the outer shell surface and is fixedly connected with the top plate surface, a plurality of groups of pointed blocks are fixedly connected to the top plate surface, and the elevator maintenance safety device with multiple protections, through the cooperation of the locking device and the buffer device, slows down the speed at which the protection rope is pulled out under the action of the friction force between the vertical rod and the rubber plate, slows down the speed at which the operator falls, and locks the protection rope at the same time, so that the operator no longer falls, thereby playing a protective role, and can reduce the damage to the maintenance personnel and improve the protective effect by slowly decelerating the personnel and then fixing and locking them.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator maintenance protection, in particular to an elevator maintenance safety device with multiple protections. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and equipped with a box-shaped cabin, which is used to carry people or goods in multi-story buildings. When the elevator is in use, it needs to be regularly inspected and maintained. When inspecting and maintaining the elevator, it is often necessary to enter the interior of the patio where the elevator is installed to inspect and maintain the elevator.

[0003] For example, the elevator maintenance safety device with multiple protections, with the authorization announcement number "CN220618025U", can drive the support rod to move under the action of structures such as active bevel gears, adjustment knobs and rotating shafts. The maintenance personnel connect the safety rope on their bodies to the ring to prevent the maintenance personnel from being injured as the car falls, and the safety is high. However, when the device protects the maintenance personnel through the protective rope, the protective rope of the device cannot be unfolded. When the car falls, the pull rope in the device will quickly pull the maintenance personnel. Under the action of the weight of the maintenance personnel, the inertia will be large, so that the protective rope will cause certain damage to the maintenance personnel while playing a protective role, resulting in poor protection effect of the device. At the same time, when the device is fixed to the inside of the elevator shaft, it is supported by mechanisms such as electric telescopic rods, but when the electric telescopic rod fails, it will cause the device to shake, resulting in poor fixing effect of the device and reduced safety. Utility Model Content

[0004] The utility model aims to solve the problem that the safety is reduced due to the poor protection effect of the device, and proposes an elevator maintenance safety device with multiple protections.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An elevator maintenance safety device with multiple protections is designed, including an outer shell and a sleeve, the inner surface of the outer shell is fixedly connected to the sleeve, the inner surface of the outer shell is provided with a buffer device, the inner surface of the outer shell is provided with a locking device, the inner surface of the sleeve is slidably engaged with two sliding rod surfaces, one end of the sliding rods on both sides penetrates the outer shell surface and is fixedly connected to the top plate surface, the top plate surface is fixedly connected to a plurality of groups of pointed blocks, the top plate surface is fixedly connected to an inclined rod, one end of the inclined rod penetrates the outer shell surface through a slideway opened on the outer shell surface and is fixedly connected to the sliding rod surface, the sliding rod surfaces on both sides are fixedly connected with threaded blocks, and the threaded blocks on both sides are slidably engaged with the slideways opened on the sleeve surface.

[0007] Preferably, the buffer device includes a slider and a fixed plate, the fixed plate is fixedly connected to the inner surface of the shell, the fixed plate is slidably engaged with the surface of the slider through a slideway opened on the surface, the surface of the slider is movably connected to one end of the push rod through a bearing, the surface of the push rod is fixedly connected with a clamping block, the inner surface of the slider is slidably engaged with the surface of the straight rod, one end of the straight rod is fixedly connected to the surface of the rubber plate, and one end of the straight rod and the inner surface of the slider are respectively fixedly connected to the two ends of the first spring.

[0008] Preferably, the buffer device includes a slider and a fixed plate, the fixed plate is fixedly connected to the inner surface of the shell, the fixed plate is slidably engaged with the surface of the slider through a slideway opened on the surface, the surface of the slider is movably connected to one end of the push rod through a bearing, the surface of the push rod is fixedly connected with a clamping block, the inner surface of the slider is slidably engaged with the surface of the straight rod, one end of the straight rod is fixedly connected to the surface of the rubber plate, and one end of the straight rod and the inner surface of the slider are respectively fixedly connected to the two ends of the first spring.

[0009] Preferably, one end of the rotating rod is fixedly connected to the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is fixedly connected to the surface of the stud, and the surface of the stud is threadedly connected to the threaded blocks on both sides.

[0010] Preferably, both ends of the stud are rotatably connected to the surface of the support block via bearings, the support blocks on both sides are fixedly connected to the inner surface of the shell, and the surface of the shell is fixedly connected with a handle.

[0011] Preferably, the inner surface of the shell is rotatably connected to one end of the reel through a bearing, the protruding portion of one end of the reel is rotatably connected to the inner surface of the shell, one end of the reel is fixedly connected to the speed sensor, and the speed sensor is fixedly connected to the inner surface of the shell.

[0012] Preferably, an opening is provided on the surface of the outer shell, and the surface of the outer shell is rotationally connected to two rollers via a pin, and the surfaces of the rollers on both sides are rotationally connected to the surface of the protective rope.

[0013] Preferably, one end of the protective rope is fixedly connected to the surface of the belt, one end of the protective rope is fixedly connected to the surface of the drum, a vertical rod is fixedly connected to the inner surface of the outer shell, and a groove is opened on the surface of the outer shell.

[0014] Preferably, the locking device includes a slide block and a clamping rod, the slide block is fixedly connected to the inner surface of the shell, the slide block is slidably clamped with the surface of the clamping rod through a slide opened on the surface, the clamping rod is clamped with the telescopic end of the electric telescopic rod through a groove opened on the surface, the electric telescopic rod is fixedly connected to the inner surface of the slide block, the inner surface of the slide block and one end of the clamping rod are respectively fixedly connected to the two ends of the second spring, the clamping rod is slidably connected to the surface of the support rod through a slide opened on the surface, one end of the support rod is fixedly connected to the inner surface of the slide block, the surface of the reel is fixedly connected with a groove ring, and the surface of the groove ring has multiple groups of grooves.

[0015] The utility model proposes an elevator maintenance safety device with multiple protections, and the beneficial effects are: through the cooperation of the locking device and the buffer device, the operator puts on the belt, and at the same time the operator slowly pulls the protective rope so that the speed sensor will not be triggered when the drum rotates. After the protective rope is pulled to a certain length, the operator can perform mobile maintenance. At the same time, the operator pushes the push rod upward so that the push rod can drive the card block to move synchronously. Under the action of the friction force on the surface of the vertical rod and the rubber plate, the pulling out of the protective rope can be limited. When the car falls or other unexpected situations occur, the operator will fall downward synchronously, and the operator will drive the belt to move synchronously, so that the belt can pull the protective rope, and between the vertical rod and the rubber plate, the operator can pull the protective rope. The friction between the rubber plates slows down the speed at which the protective rope is pulled out, and slows down the speed at which the operator falls. At the same time, the reel is driven to rotate during the pulling of the protective rope. When the speed of the reel exceeds the set value of the speed sensor, the speed sensor controls the shortening of the telescopic end of the electric telescopic rod, so that the electric telescopic rod no longer engages with the groove on the surface of the connecting rod, and the groove on the surface of the groove ring can engage with the surface of the connecting rod, so that the angle of the reel is fixed and the protective rope is locked at the same time, so that the operator no longer falls, thereby playing a protective role. By slowly decelerating the personnel and then fixing and locking them, the damage to the maintenance personnel is reduced, and the protection effect is improved through multiple protective measures of decelerating first and then locking.

[0016] Through the cooperation of the studs and the top plate, the operator carries the equipment into the elevator shaft, the operator stands above the car, and the operator rotates the rotating rod through the turntable, so that the rotating rod can drive the first bevel gear to rotate, and the first bevel gear can drive the second bevel gear to rotate synchronously, so that the second bevel gear can drive the studs to rotate, so that the studs can drive the threaded blocks on both sides to move synchronously, so that the threaded blocks on both sides can drive the sliding rods on both sides to move synchronously, so that the sliding rods on both sides can drive the inclined rods and the top plate to move synchronously, so that the top plates on both sides can be pressed against the inner wall of the elevator shaft through multiple groups of sharp blocks on the surface, so that the position of the outer shell is fixed, and the device is fixed manually, so that the device can be more stable when fixed, the occurrence of shaking is reduced, and the safety of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A front cross-sectional view of

[0019] Figure 3 for Figure 1 A side cross-sectional view of

[0020] Figure 4 for Figure 1 A top sectional view of

[0021] Figure 5 for Figure 2 Schematic diagram of part A;

[0022] Figure 6 for Figure 3 Schematic diagram of part B.

[0023] In the figure: 1, shell, 2, frame, 3, turntable, 4, speed sensor, 5, support block, 6, inclined rod, 7, pointed block, 8, locking device, 801, groove ring, 802, slide block, 803, electric telescopic rod, 804, clamping rod, 805, support rod, 806, second spring, 9, buffer device, 901, push rod, 902, clamping block, 903, first spring, 904, slider, 905, fixing plate, 906, rubber plate, 907, straight rod, 10, top plate, 11, handle, 12, stud, 13, sleeve, 14, slide rod, 15, second bevel gear, 16, first bevel gear, 17, rotating rod, 18, reel, 19, vertical rod, 20, roller, 21, belt, 22, protective rope, 23, threaded block. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Refer to the attached Figure 1-6: In the present embodiment, an elevator maintenance safety device with multiple protections comprises a shell 1 and a sleeve 13, the inner surface of the shell 1 is fixedly connected with the sleeve 13, a buffer device 9 is arranged inside the shell 1, a locking device 8 is arranged inside the shell 1, the inner surface of the sleeve 13 is slidably engaged with the surfaces of two slide bars 14, one end of the slide bars 14 on both sides penetrates the surface of the shell 1 and is fixedly connected with the surface of the top plate 10, a plurality of groups of pointed blocks 7 are fixedly connected to the surface of the top plate 10, the pointed blocks 7 can be more stably tightened with the inner surface of the elevator shaft, the surface of the top plate 10 is fixedly connected with an inclined rod 6, the inclined rod 6 can support the top plate 10 more stably, one end of the inclined rod 6 penetrates the surface of the shell 1 and is fixedly connected with the surface of the slide bar 14 through a slideway provided on the surface of the shell 1, the surfaces of the slide bars 14 on both sides are fixedly connected with threaded blocks 23, and the threaded blocks 23 on both sides can drive the slide bars 14 on both sides to move synchronously;

[0026] The threaded blocks 23 on both sides are slidably engaged with the slideways provided on the surface of the sleeve 13 to fix the motion tracks of the threaded blocks 23 on both sides. The inner surface of the shell 1 is fixedly connected with a frame 2. The surface of the frame 2 is rotatably connected to the surface of the rotating rod 17 through a bearing. The frame 2 can support the rotating rod 17. One end of the rotating rod 17 passes through the surface of the shell 1 through a bearing and is fixedly connected to the turntable 3. The turntable 3 can conveniently rotate the rotating rod 17. One end of the rotating rod 17 is fixedly connected to the first bevel gear 16. The first bevel gear 16 can drive the second bevel gear 15 to rotate. The first bevel gear 16 is meshed with the second bevel gear 15. The second bevel gear 15 is fixedly connected to the surface of the stud 12. The second bevel gear 15 can drive the stud 12 to rotate. The surface of the stud 12 is threadedly connected to the threaded blocks 23 on both sides. The stud 12 can drive the threaded blocks 23 on both sides to move synchronously.

[0027] Both ends of the stud 12 are rotatably connected to the surface of the support block 5 through bearings to fix the rotation center of the stud 12. The support blocks 5 on both sides are fixedly connected to the inner surface of the shell 1. The surface of the shell 1 is fixedly connected with a handle 11. The inner surface of the shell 1 is rotatably connected to one end of the reel 18 through a bearing to fix the rotation center of the reel 18. The protruding part of one end of the reel 18 is rotatably connected to the inner surface of the shell 1. One end of the reel 18 is fixedly connected to the speed sensor 4. The speed sensor 4 can meet the work needs according to actual needs. The speed sensor 4 has been disclosed in the prior art and will not be described in detail here. The power source of the speed sensor 4 and the electric telescopic rod 803 can be a lithium battery or a small storage battery, etc. The speed sensor 4 is fixedly connected to the inner surface of the shell 1. The speed sensor 4 can detect the speed of the reel 18. An opening is opened on the surface of the shell 1;

[0028] The surface of the outer shell 1 is rotatably connected to the two rollers 20 through a pin shaft, and the surfaces of the rollers 20 on both sides are rotatably connected to the surface of the protective rope 22. The protective rope 22 can be made of nylon or other materials. The rollers 20 on both sides can prevent friction from damaging the protective rope. One end of the protective rope 22 is fixedly connected to the surface of the belt 21, and one end of the protective rope 22 is fixedly connected to the surface of the reel 18. A vertical rod 19 is fixedly connected to the inner surface of the outer shell 1, and a rubber block is provided at one end of the vertical rod 19 to make the vertical rod 19 fit the surface of the protective rope 22. A groove is opened on the surface of the outer shell 1, and the groove on the surface of the outer shell 1 can clamp and fix the clamping block 902.

[0029] Refer to the attached Figure 1-6 : The buffer device 9 includes a slider 904 and a fixed plate 905, the fixed plate 905 is fixedly connected to the inner surface of the shell 1, the fixed plate 905 is slidably engaged with the surface of the slider 904 through a slideway provided on the surface, the motion track of the fixed slider 904, the surface of the fixed slider 904 is movably connected to one end of the push rod 901 through a bearing, the push rod 901 can drive the block 902 to rotate, the surface of the push rod 901 is fixedly connected with the block 902, the inner surface of the slider 904 is slidably engaged with the surface of the straight rod 907, one end of the straight rod 907 is fixedly connected to the surface of the rubber plate 906, the straight rod 907 can drive the rubber plate 906 to move synchronously, so that the rubber plate 906 can be pressed against the surface of the protective rope 22, one end of the straight rod 907 and the inner surface of the slider 904 are respectively fixedly connected to the two ends of the first spring 903, the elastic coefficient of the first spring 903 can meet the working needs according to actual needs, and the first spring 903 can allow the straight rod 907 to have a certain movement space.

[0030] Refer to the attached Figure 1-6The locking device 8 includes a slide block 802 and a clamping rod 804. The slide block 802 is fixedly connected to the inner surface of the housing 1. The slide block 802 is slidably clamped with the surface of the clamping rod 804 through a slideway provided on the surface, and the moving track of the clamping rod 804 is fixed. The clamping rod 804 is clamped with the telescopic end of the electric telescopic rod 803 through a groove provided on the surface. The electric telescopic rod 803 can meet the working needs according to actual needs. The electric telescopic rod 803 can fix the position of the clamping rod 804. The electric telescopic rod 803 is fixedly connected to the inner surface of the slide block 802. The inner surface of the slide block 802 and one end of the clamping rod 804 are respectively connected to the second elastic The two ends of the spring 806 are fixedly connected, and the elastic coefficient of the second spring 806 can be determined according to actual needs to meet the working needs. The second spring 806 can push the clamping rod 804 to move quickly, and the clamping rod 804 is slidably connected to the surface of the support rod 805 through a slideway opened on the surface. The support rod 805 can further fix the moving track of the clamping rod 804. One end of the support rod 805 is fixedly connected to the inner surface of the slide block 802. The surface of the reel 18 is fixedly connected with a groove ring 801. The surface of the groove ring 801 has multiple groups of grooves. The clamping rod 804 can be clamped with the grooves on the surface of the groove ring 801, so that the angle of the reel 18 can be fixed.

[0031] Working principle:

[0032] When performing maintenance on the elevator:

[0033] Installation process:

[0034] The operator carries the equipment into the elevator shaft, stands above the car, and rotates the rotating rod 17 through the turntable 3, so that the rotating rod 17 can drive the first bevel gear 16 to rotate, and the first bevel gear 16 can drive the second bevel gear 15 to rotate synchronously, so that the second bevel gear 15 can drive the stud 12 to rotate, so that the stud 12 can drive the threaded blocks 23 on both sides to move synchronously, so that the threaded blocks 23 on both sides can drive the sliding rods 14 on both sides to move synchronously, so that the sliding rods 14 on both sides can drive the inclined rods 6 and the top plate 10 to move synchronously, so that the top plates 10 on both sides can be pressed against the inner wall of the elevator shaft through the multiple groups of sharp blocks 7 on the surface, so that the position of the outer shell 1 is fixed.

[0035] Protection process:

[0036] The operator puts on the belt 21, and at the same time slowly pulls the protective rope 22, so that the reel 18 will not trigger the speed sensor 4 when it rotates. After the protective rope 22 is pulled to a certain length, the operator can perform mobile maintenance. At the same time, the operator pushes the push rod 901 upward, so that the push rod 901 can drive the block 902 to move synchronously, so that the block 902 can enter the groove on the surface of the shell 1, and at the same time rotates the push rod 901, so that the push rod 901 can drive the block 902 to engage with the groove on the surface of the shell 1, so that the push rod 901 The position is fixed, and when the push rod 901 moves, the slider 904 can be pushed to move synchronously, so that the slider 904 can drive the straight rod 907 to move synchronously, and the straight rod 907 can drive the rubber plate 906 to move synchronously, so that the rubber plate 906 can be pressed against the surface of the protective rope 22, and under the action of the first spring 903, the rubber plate 906 can have a certain movement space, and the first spring 903 is in a state of being compressed to a limit, and under the action of the friction force on the surface of the vertical rod 19 and the rubber plate 906, the pulling out of the protective rope 22 can be limited.

[0037] Emergency protection process:

[0038] When the car falls or other unexpected situations occur, the operator will fall down synchronously, and the operator will drive the belt 21 to move synchronously, so that the belt 21 can pull the protective rope 22. The friction between the vertical rod 19 and the rubber plate 906 will slow down the speed at which the protective rope 22 is pulled out, and the speed at which the operator falls will be slowed down. At the same time, the reel 18 will be driven to rotate during the process of the protective rope 22 being pulled. When the speed of the reel 18 exceeds the set value of the speed sensor 4, the speed sensor 4 will control the external power supply of the electric telescopic rod 803 to be turned on.

[0039] The telescopic end of the electric telescopic rod 803 is shortened by starting the electric telescopic rod 803, so that the electric telescopic rod 803 is no longer engaged with the groove on the surface of the clamping rod 804, so that the second spring 806 is no longer compressed, so that the second spring 806 can push the clamping rod 804 to pop out quickly and press against the surface of the groove ring 801. When the groove ring 801 rotates with the reel 18, the groove on the surface of the groove ring 801 can be engaged with the surface of the clamping rod 804, so that the angle of the reel 18 is fixed, and at the same time the protective rope 22 is locked, so that the operator will no longer fall, thereby playing a protective role.

[0040] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An elevator maintenance safety device with multiple protections, comprising a housing (1) and a sleeve (13), wherein the inner surface of the housing (1) is fixedly connected to the sleeve (13), characterized in that: A buffer device (9) is provided inside the shell (1), a locking device (8) is provided inside the shell (1), the inner surface of the sleeve (13) is slidably engaged with the surfaces of two slide bars (14), one end of the slide bars (14) on both sides penetrates the surface of the shell (1) and is fixedly connected to the surface of the top plate (10), a plurality of groups of pointed blocks (7) are fixedly connected to the surface of the top plate (10), an inclined rod (6) is fixedly connected to the surface of the top plate (10), one end of the inclined rod (6) penetrates the surface of the shell (1) and is fixedly connected to the surface of the slide bar (14) through a slideway provided on the surface of the shell (1), threaded blocks (23) are fixedly connected to the surfaces of the slide bars (14) on both sides, and the threaded blocks (23) on both sides are slidably engaged with the slideways provided on the surface of the sleeve (13).

2. The elevator maintenance safety device with multiple protections according to claim 1 is characterized in that: The buffer device (9) comprises a slider (904) and a fixed plate (905), wherein the fixed plate (905) is fixedly connected to the inner surface of the housing (1), and the fixed plate (905) is slidably engaged with the surface of the slider (904) via a slideway provided on the surface, and the surface of the slider (904) is movably connected to one end of a push rod (901) via a bearing, and a clamping block (902) is fixedly connected to the surface of the push rod (901), and the inner surface of the slider (904) is slidably engaged with the surface of a straight rod (907), and one end of the straight rod (907) is fixedly connected to the surface of a rubber plate (906), and one end of the straight rod (907) and the inner surface of the slider (904) are respectively fixedly connected to two ends of a first spring (903).

3. The elevator maintenance safety device with multiple protections according to claim 1 is characterized in that: The inner surface of the outer shell (1) is fixedly connected to a frame (2); the surface of the frame (2) is rotatably connected to the surface of a rotating rod (17) via a bearing; one end of the rotating rod (17) passes through the surface of the outer shell (1) via a bearing and is fixedly connected to the rotating disk (3).

4. The elevator maintenance safety device with multiple protections according to claim 3 is characterized in that: One end of the rotating rod (17) is fixedly connected to the first bevel gear (16), the first bevel gear (16) is meshed with the second bevel gear (15), the second bevel gear (15) is fixedly connected to the surface of the stud (12), and the surface of the stud (12) is threadedly connected to the threaded blocks (23) on both sides.

5. The elevator maintenance safety device with multiple protections according to claim 4 is characterized in that: Both ends of the stud bolt (12) are rotatably connected to the surface of the support block (5) via bearings, and the support blocks (5) on both sides are fixedly connected to the inner surface of the outer shell (1), and a handle (11) is fixedly connected to the surface of the outer shell (1).

6. The elevator maintenance safety device with multiple protections according to claim 1, characterized in that: The inner surface of the housing (1) is rotatably connected to one end of the reel (18) via a bearing, a protruding portion at one end of the reel (18) is rotatably connected to the inner surface of the housing (1), one end of the reel (18) is fixedly connected to a rotation speed sensor (4), and the rotation speed sensor (4) is fixedly connected to the inner surface of the housing (1).

7. The elevator maintenance safety device with multiple protections according to claim 1 is characterized in that: An opening is provided on the surface of the shell (1), and the surface of the shell (1) is rotationally connected to two rollers (20) via a pin shaft, and the surfaces of the rollers (20) on both sides are rotationally connected to the surfaces of the protective rope (22).

8. The elevator maintenance safety device with multiple protections according to claim 7 is characterized in that: One end of the protective rope (22) is fixedly connected to the surface of the waist belt (21), and one end of the protective rope (22) is fixedly connected to the surface of the reel (18). The inner surface of the outer shell (1) is fixedly connected to a vertical rod (19), and a groove is provided on the surface of the outer shell (1).

9. The elevator maintenance safety device with multiple protections according to claim 8, characterized in that: The locking device (8) comprises a slide block (802) and a clamping rod (804); the slide block (802) is fixedly connected to the inner surface of the housing (1); the slide block (802) is slidably clamped with the surface of the clamping rod (804) via a slide provided on the surface; the clamping rod (804) is clamped with the telescopic end of the electric telescopic rod (803) via a groove provided on the surface; the electric telescopic rod (803) is fixedly connected to the inner surface of the slide block (802). The inner surface of the slide block (802) and one end of the clamping rod (804) are respectively fixedly connected to the two ends of the second spring (806); the clamping rod (804) is slidably connected to the surface of the support rod (805) through a slideway provided on the surface; one end of the support rod (805) is fixedly connected to the inner surface of the slide block (802); the surface of the reel (18) is fixedly connected to a groove ring (801); and the surface of the groove ring (801) is provided with a plurality of groups of grooves.

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